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Formation elastic parameters by deriving S-wave velocity logsCREWES Research Report Volume 9 (1997)10-1 Formation elastic parameters by deriving S-wave velocitylogsColin C. Potter and Darren S. FoltinekABSTRACTThe calculation of the elastic parameters (Poisson's ratio, Bulk modulus, Rigiditymodulus, Lame's constant and Young's modulus) of a Formation requires P sonic, Ssonic and density logs. Where S sonic logs do not exist, they can be derived from a Psonic log and Vp/Vs ratios for each Formation . The Vp/Vs values can be interpretedfrom other wells by statistical analysis of the Vp/Vs ratio of the formations in theregion, predetermined values from lithology and P- and S-wave velocities from otheranalyses. Software to perform this calculation has been developed. Formation elasticparameters were calculated for four wells in the Blackfoot field in Southern elastic parameters allow further interpretation of the substructure.
Formation elastic parameters by deriving S-wave velocity logs CREWES Research Report — Volume 9 (1997) 10-3 2.21 for the Belly River, suggesting high shale content.
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